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Finding the Fourth Proportional to 493,118.32, 680,496.63 and 275,330.35

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Solution

The fourth proportional to 493,118.32, 680,496.63 and 275,330.35 is: 379,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,118.32 : 680,496.63 = 275,330.35 : x
  2. Step 2: Convert to fraction form
    493,118.32/680,496.63 = 275,330.35/x
  3. Step 3: Cross multiply
    493,118.32x = 680,496.63 × 275,330.35
  4. Step 4: Simplify right side
    493,118.32x = 187,361,375,311.72
  5. Step 5: Solve for x
    x = 187,361,375,311.72/493,118.32
  6. Step 6: Final answer
    x = 379,952.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.